Vector optimization problems and their solution concepts / Gabriele Eichfelder and Johannes Jahn -- Gordan-type alternative theorems and vector optimization revisited / Fabi?aan Flores-Baz?aan, Fernando Flores-Baz?aan, and Cristi?aan Vera -- Duality in vector optimization with infimum and supremum / Andreas L?eohne -- Variable ordering structures in vector optimization / Gabriele Eichfelder -- Strong KKT, second order conditions and non-solid cones in vector optimization / Joydeep Dutta -- Optimality conditions and image space analysis for vector optimization problems / Giandomenico Mastroeni -- Nonsmooth invexities, invariant monotonicities and nonsmooth vector variational-like inequalities with applications to vector optimization / Suliman Al-Homidan, Qamrul Hasan Ansari, and Jen-Chih Yao -- Optimality conditions for approximate solutions of convex semi-infinite vector optimization problems / Gue Myung Lee, Gwi Soo Kim, and Nguyen Dinh